Commit 5262d035 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: ni_660x: fix memory barrier without comment 



Fix the checkpatch.pl issue. Move the memory barrier to a better place.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e8f6e2b9

drivers/staging/comedi/drivers/ni_660x.c

+3 −1
Original line number Diff line number Diff line
@@ -613,9 +613,11 @@ static irqreturn_t ni_660x_interrupt(int irq, void *d) 


	if (!dev->attached)

		return IRQ_NONE;

	/* make sure dev->attached is checked before doing anything else */

	smp_mb();



	/* lock to avoid race with comedi_poll */

	spin_lock_irqsave(&devpriv->interrupt_lock, flags);

	smp_mb();

	for (i = 0; i < dev->n_subdevices; ++i) {

		s = &dev->subdevices[i];

		if (s->type == COMEDI_SUBD_COUNTER)